Merge pull request #337 from chef-partners/ayush/update-in-shared-file

Fix for failing deployment of Azure Chef extension in Ubuntu 20.04

Author: dheerajd-msys

ChefExtensionHandler/bin/shared.sh

@@ -2,15 +2,15 @@
 
 get_linux_distributor(){
 #### Using python -mplatform command to get distributor name #####
-  if ( python -mplatform || /usr/libexec/platform-python -mplatform ) | grep centos > /dev/null; then
+  if ( python -mplatform || /usr/libexec/platform-python -mplatform || cat /etc/os-release) | grep centos > /dev/null; then
     linux_distributor='centos'
-  elif ( python -mplatform || /usr/libexec/platform-python -mplatform ) | grep Ubuntu > /dev/null; then
+  elif ( python -mplatform || cat /etc/os-release ) | grep Ubuntu > /dev/null; then
     linux_distributor='ubuntu'
-  elif ( python -mplatform || /usr/libexec/platform-python -mplatform ) | grep debian > /dev/null; then
+  elif ( python -mplatform || cat /etc/os-release ) | grep debian > /dev/null; then
     linux_distributor='debian'
-  elif ( python -mplatform || /usr/libexec/platform-python -mplatform ) | grep redhat > /dev/null; then
+  elif ( python -mplatform || /usr/libexec/platform-python -mplatform || cat /etc/os-release ) | grep redhat > /dev/null; then
     linux_distributor='rhel'
-  elif ( python -mplatform || /usr/libexec/platform-python -mplatform ) | grep -E -i "linux.*oracle" > /dev/null; then
+  elif ( python -mplatform || /usr/libexec/platform-python -mplatform || cat /etc/os-release ) | grep -E -i "linux.*oracle" > /dev/null; then
     linux_distributor='linuxoracle'
   fi
   echo "${linux_distributor}"
@@ -108,8 +108,8 @@ get_file_path_to_parse_env_variables(){
 # Execute parse_env_variables.py file to fetch values of `environment_variables` from 0.setting files
 export_env_vars() {
   config_file_name=$1
-  if ( python -mplatform || /usr/libexec/platform-python -mplatform ) | grep "redhat-8" > /dev/null; then
-    commands="`/usr/libexec/platform-python $path_to_parse_env_variables \"$config_file_name\"`"
+  if ( command -v python3) &> /dev/null;then
+    commands="`python3 $path_to_parse_env_variables \"$config_file_name\"`"
   else
     commands="`python $path_to_parse_env_variables \"$config_file_name\"`"
   fi